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ES88228A1 - Improved operation of loud voice telephones. - Google Patents

Improved operation of loud voice telephones.

Info

Publication number
ES88228A1
ES88228A1 ES88228A ES88228A ES88228A1 ES 88228 A1 ES88228 A1 ES 88228A1 ES 88228 A ES88228 A ES 88228A ES 88228 A ES88228 A ES 88228A ES 88228 A1 ES88228 A1 ES 88228A1
Authority
ES
Spain
Prior art keywords
improved operation
loud voice
voice telephones
telephones
loud
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
ES88228A
Other languages
Spanish (es)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Societe Francaise Radio Electrique
Original Assignee
Societe Francaise Radio Electrique
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Societe Francaise Radio Electrique filed Critical Societe Francaise Radio Electrique
Priority to ES88228A priority Critical patent/ES88228A1/en
Publication of ES88228A1 publication Critical patent/ES88228A1/en
Expired legal-status Critical Current

Links

ES88228A 1924-02-01 1924-02-01 Improved operation of loud voice telephones. Expired ES88228A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES88228A ES88228A1 (en) 1924-02-01 1924-02-01 Improved operation of loud voice telephones.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES88228A ES88228A1 (en) 1924-02-01 1924-02-01 Improved operation of loud voice telephones.

Publications (1)

Publication Number Publication Date
ES88228A1 true ES88228A1 (en) 1924-07-01

Family

ID=64253694

Family Applications (1)

Application Number Title Priority Date Filing Date
ES88228A Expired ES88228A1 (en) 1924-02-01 1924-02-01 Improved operation of loud voice telephones.

Country Status (1)

Country Link
ES (1) ES88228A1 (en)

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